56110009987 has 2 divisors, whose sum is σ = 56110009988. Its totient is φ = 56110009986.

The previous prime is 56110009939. The next prime is 56110010027. The reversal of 56110009987 is 78990001165.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56110009987 - 2¹⁹ = 56109485699 is a prime.

It is not a weakly prime, because it can be changed into another prime (56110009937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28055004993 + 28055004994.

It is an arithmetic number, because the mean of its divisors is an integer number (28055004994).

Almost surely, 2^56110009987 is an apocalyptic number.

56110009987 is a deficient number, since it is larger than the sum of its proper divisors (1).

56110009987 is an equidigital number, since it uses as much as digits as its factorization.

56110009987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 56110009987 in words is "fifty-six billion, one hundred ten million, nine thousand, nine hundred eighty-seven".